(CNN) - Some Democrats say they fear their party's method of picking a nominee might turn undemocratic as neither presidential candidate is likely to gather the delegates needed for the nomination.
Sens. Hillary Clinton and Barack Obama are running neck and neck toward the party's August convention in Denver, Colorado. Most projections show neither getting the necessary 2,025 delegates in the remaining nominating contests before then.
Party rules call for the votes of superdelegates - 800 or so party officers, elected officials and activists - to tip the balance. The party instituted the system to avoid the turmoil that a deadlocked race would create at a convention.
But even some superdelegates are questioning the system, as the party heads toward the conclusion of a race in which they might determine the outcome.